Ryan gave
15 of his buttons to Dylan,
14 of his remaining buttons to Ethan and
13 of the rest of his buttons to Daniel. He then had 28 buttons left. How many buttons had he at first?
| Dylan |
Remaining buttons |
Total |
| 1 u |
4 u |
5 u |
| |
Ethan |
Rest of the buttons |
|
| |
1 u |
3 u |
|
| |
|
Daniel |
Left |
|
| |
|
1 u |
2 u |
|
| |
|
|
28 |
|
Number of buttons that Ryan had before = 5 u
Number of buttons that Ryan gave to Dylan = 1 u
Number of buttons that Ryan gave to Ethan = 1 u
Number of buttons that Ryan gave to Daniel = 1 u
Number of buttons that Ryan had left = 2 u
2 u = 28
1 u = 28 ÷ 2 = 14
Number of buttons that Ryan had at first
= 5 u
= 5 u x 14
= 70
Answer(s): 70
